Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoa ban den snippets" » "thoa man den snippets", "thuat ban den snippets", "thoai van den snippets", "thoa ban dan snippets", "thoa quan den snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("thoa ban den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thoa ban den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoa ban den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoa ban den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.